Index: Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsPlugin.cs
===================================================================
diff -u -r93d214db8ac0a90b6f1bf1712a414e4f31c3eed9 -r16cb360eae0014270ebb6700054afdbbd565ae65
--- Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsPlugin.cs	(.../GrassCoverErosionInwardsPlugin.cs)	(revision 93d214db8ac0a90b6f1bf1712a414e4f31c3eed9)
+++ Ringtoets/GrassCoverErosionInwards/src/Ringtoets.GrassCoverErosionInwards.Plugin/GrassCoverErosionInwardsPlugin.cs	(.../GrassCoverErosionInwardsPlugin.cs)	(revision 16cb360eae0014270ebb6700054afdbbd565ae65)
@@ -303,7 +303,7 @@
         {
             foreach (var calculation in grassCoverErosionInwardsCalculations)
             {
-                new GrassCoverErosionInwardsCalculationService().Validate(calculation, assessmentSection);
+                GrassCoverErosionInwardsCalculationService.Validate(calculation, assessmentSection);
             }
         }
 
@@ -587,7 +587,7 @@
 
             return builder.AddValidateCalculationItem(
                 context,
-                c => new GrassCoverErosionInwardsCalculationService().Validate(c.WrappedData, c.AssessmentSection),
+                c => GrassCoverErosionInwardsCalculationService.Validate(c.WrappedData, c.AssessmentSection),
                 ValidateAllDataAvailableAndGetErrorMessageForCalculation)
                           .AddPerformCalculationItem(calculation, context, Calculate, ValidateAllDataAvailableAndGetErrorMessageForCalculation)
                           .AddClearCalculationOutputItem(calculation)